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Win32.HLLW.Autoruner1.1969
Added to the Dr.Web virus database:
2012-02-03
Virus description added:
2012-02-24
Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'winupdateserver.exe' = '%TEMP%\<Virus name>.exe'
Creates the following files on removable media:
<Drive name for removable media>:\autorun.inf
<Drive name for removable media>:\Sys.exe
Malicious functions:
Creates and executes the following:
Executes the following:
%WINDIR%\Microsoft.NET\Framework\v2.0.50727\cvtres.exe /NOLOGO /READONLY /MACHINE:IX86 "/OUT:%TEMP%\RES2.tmp" "%TEMP%\vbc1.tmp"
%WINDIR%\Microsoft.NET\Framework\v2.0.50727\vbc.exe /noconfig @"%TEMP%\yzqjvh9z.cmdline"
Modifies file system :
Creates the following files:
C:\autorun.inf
C:\Sys.exe
%TEMP%\vbc1.tmp
%TEMP%\qлけはcоNL.exe
%TEMP%\RES2.tmp
%TEMP%\yzqjvh9z.0.vb
%TEMP%\<Virus name>.exe
%TEMP%\yzqjvh9z.cmdline
<Current directory>\workgroup
%TEMP%\yzqjvh9z.out
Sets the 'hidden' attribute to the following files:
<Drive name for removable media>:\Sys.exe
<Drive name for removable media>:\autorun.inf
C:\Sys.exe
C:\autorun.inf
Deletes the following files:
%TEMP%\vbc1.tmp
%TEMP%\RES2.tmp
Deletes itself.
Network activity:
Connects to:
UDP:
DNS ASK sm##.gmail.com
'<Private IP address>':1035
Miscellaneous:
Searches for the following windows:
ClassName: 'Indicator' WindowName: ''
ClassName: '' WindowName: '%TEMP%\<Virus name>.exe'
ClassName: '' WindowName: '<Auxiliary name>'
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